Plaster-board machine.



G. R. KING. PLASTER BOARD MACHINE. APPLICATION FILED AUG. 7, 1909.

Patented July 23, 1912.

7 SHEETS-SHEET 1.

] hoe, Mo c I G. R. KING. PLASTER BOARD MACHINE. APPLICATION FILED AUG. 7, 1909.

Patented July 23, 1912.

7 SHEETS-SHEET 2.

G. R. KING. PLASTER BOARD MACHINE. APPLICATION FILED AUG. 7, 1909.

Patented July 23,1912.

7 SHEETS-SHEET 3.

IMH

G. R. KING. PLASTER BOARD MACHINE.

APPLICATION FILED AUG. 7, 1909.

7 SHEETS-SHEET 4.

Patented July 23, 1912.

- I 351 his fl tto g y G. R. KING.

PLASTEB. BOARD MACHINE.

APPLICATION FILED AUG. 7, 1909.

Patented July 23; 1912.

7 SHEETS-SHEET 6.

5 mm ntoz 6&0 07K King 53:71am GINO e13 G. R. KING.

PLASTBR BOARD MACHINE.

APPLICATION FILED AUG. 7, 1909.

1,033,25 1 Patented July 23, 1912 7 SHEETS-SHEET 7.

. same into proper lengths.

e onen-n. KING, or NEW YORK, .N. LY AssIeNoIt '10 conrbanrron on NEW YOR PLAS'IER-IBOARD MACHINE.

Specification of Letters Patent.

Application filed August 7, 1909. Serial No. 511,702.

To all whom it may concern:

Be it known that I, GEORGE R. KING, a citizen'of'the United States, and a resident of the city of New York, county of Rio mond, State of Newv York, have inventd certain new and useful Improvements in Plaster-Board Machines, of which the following is a specification.-

The object of my invention is to make plasterboard by machinery,.either with or Without the use of paper, and to make the This object is accomplished by my invention, one embodifment of which is hereinafter set forth.

For a more particular description of my invention, reference is -to be had to the ac-- companying drawings, forming a part here-1 of, in which:

the machine. Fig.2 is a side elevation of the other end of the machine. Fig. 3 is a longitudinal section of the machine with parts omitted. Fig. 4 is a sectional view taken on the line 44 of Fig. 3. F ig.5 is a sectional view taken on the line 55 of Fig. 7 looking in the direction of the arrows.

Fig. 6 is a longitudinal section of the paper roll supporting cones and also shows the shaft on which they are mounted Fig. 7

1s a plan view of the front half of the machine. Figs. Sand 9 are rear and front end elevations showing details. Fig. 10 is an enlarged plan view showing the cutting and driving mechanism. Fig. 11 is an enlarged 19 are sectional views taken on the lines 18 plan view'of the saw carrying frame. Fig. 12 is a sectional view taken on the line l2l2 of Fig. 11, looking in the direction of the arrows. Figs. 13, 14, 15, '16 and 17 are detailed views showing the shifting mechanism for the carriage so that the saw will act only on the advance movement and not on the return movement. .Figs. 18 and and 19-19 of Fig. 16, looking in the direction of the arrows. Figs. 20 and 21 are a side elevation and plan view respectively, of the rear half of the machine. Throughout the various views of the drawings, similar reference characters designate similar parts. i 'My improwed plaster board machine 1* is provided with a suitable frame 2, made of 'to said shaft 5 and engages a suitable strap 8 in the conventional manner and of the Patented July 23; 1912,.

J. B. KING ,AND COMPANY, A

conventional kind, and this strap 8 is con- I nected by connecting rod 9 to a lever 10 ful- I crumed at 11 in any suitable manner and near its upper endit is adjustably and pivotally connected to an adjustable link 12 which is similarly, connected to a second lever 13.1oosely mounted on a shaft 14 which g, is suitably journaled in supports 15 of the Figure 1 is a side elevation of one end of frame 2 of the machine. The lever 13 carries a suitable pawl 16 which engages a suit able ratchet wheel 17 fixed on the shaft 14 dependent upon the positions of thepivots on each end of the link 12 on the levers 1'0 I and 13. o

. The rod 9 and the rod 12 shift the ratchet Wheel 17 only when moved from left to right when in the position shown in Fig. 10, that is, only, when said rods are in tension. The ratchet Wheel 17 drives the shaft 14 to which it is fixed, and the shaft 14 carries a gear wheel 18 which is fixedly mounted therein and drives a pinion 19 fixedly mounted on a shaft 20 and j ournaled in suit- I able bearings 21 supported by. the frame work 2 of the machine.

' The shaft 20 carries a drum22 on which is the main carrying belt 23 of the machine. This belt 23 carries thickened edges 24 which are so arranged and disposed as to make a border for the belt 23 equal in thickness to the thickness of the finished plaster board and the belt 25 which rests onthe belt 23. This belt 25 is made a little longer than the belt 23 and runs over an idle pulley 26 suitably mounted in the frame work of the machine and so arranged and disposed as to carry the plaster board 27 for-a short distance after thesame has been forced away from the belt23 and its thickened edges 24. The belt 23 is also supported at its forward sprocket wheel 30 on which is a sprocket chain 31 that drives a second sprocket wheel 32 fixedly mounted on a shaft 33 carried in suitable bearings secured to the frame 2.

The shaft 33 carries a brush 34 which rubs against thebelt 25 on its lower and in- Operative run from the rear to the front of the machine and cleans the same. This brush is driven in the opposite direction from the direction of movement of the belt 25 so that it gives the same a thorough cleaning and removes any plaster which may have come from the board 27.

Immediately under the pulley 28 is a tank or trough 35 which is providedwith oil and in this oil runs a suitable brush or other conveyer 36 which is made in cylindrical form and suitably mounted on a shaft 37 journaled in suitable bearings 38 connected to the frame of the machine and this brush or lubricator 36 rubs against the belt 25 and lubricates the same so that the plaster board 27 will not stick thereto when the machine'is. in operation. The upper and operative run of the belts 23 and 25 is 'over a table 39 supported by the frame 2 and this table 39 is interrupted with suitable rests in which are placedrollers 40 journaled in suitable bearings 41 so as to sup port the said belts from place to place and also to form supports for the .belt under calendering rolls hereinafter described.

Above the roll 28' is an idle roller 42 which rests on the belt 25 and presses the same firmly against the belt 23 and also distributes the lubricant if such a distribution is necessary; Immediately after leaving the roller 42 the belt 25.comes under a suitable source of plaster supply 43 which may be of any suitable kind or form and is preferably substantially like that shown in my co-pending application filed the 16th day of Novemher, 1908, Serial Number 462,808 which places on said belt the material necessary for the plaster board. Immediately after leaving this source of supply the belts 23 and 25 pass under a roller 44 mounted on a suitable shaft 45 and'journaled in suitable bearings 46 secured to the frame'2 of the machine. In Fig. 3 a paper roll 47 is shown mounted on suitable cones 48 on a shaft 49. This paper roll .is to be used when the [plasterboard is to have paper attached on one side and may be omitted if desired and then the board will be made without paper.

and band to act as a brake to prevent the roll from turning too freely.

In the preferred embodiment of my invention the roller 44 is at one end of-a belt The shaft 49 is provided with. a" pulley 50 over which passes the usual weight" 51 which is inoperative on its upper run and on its lower run is parallel to the belts 25 and 23 so that the plaster board when ting. The lower run is the operative run of the belt 51 and this belt is made of such a width that it fits between the thickened edges 24 of the belt 23', that is, it is the same width as the belt 25. On its upper run the belt 51 may be supported by idle rollers 52 mounted in suitable bearings 53 on the frame 2 of the machine. The lower and inoperative run of the belts 23 and 25 are also supported by similar rollers 52 mounted in suitable bearings and. brackets 53; From the roller 44 the belt .51 passes on under a series of heating or calcndering rolls 54. The purpose of these calendering rolls 54 is to give proper shape, density and thickness to the plaster board 27 in conjunction with the rolls 40 and also to heat the plaster so as to cause a quick setting of the plaster so that it will be sufliciently firm and set when it passes from the machine so as to permit of proper handling.

As the rolls 54 are identical, a description of onewill answer for all. Each roll 54 is supplied with steam from a pipe 55 through Te 56, stud pipes 57 and packing boxes 58. The pipes 57 pass into the interior of the hollow rolls 54 and admit steam thereto. An exhaust pipe 59 has Ts 60 and stud pipes 61 passing through packing boxes 62 into the interior of the hollow rolls 54 and each 'stud pipe 61 is bent at its lower end so as to trap the steam above the water of condensation, as shown in Fig.

. 5. By means of the steam passing through them, the rolls 54 are kept at any desired temperature. Each roll 54 is journaled in suitable bearings 63 which are well lubricated because of the steam heat. a

The bearings near the stufling boxes 58 are separated from the stufling boxes by a sufiicient distance to allow sprocket wheels 64 to be placed thereon, which sprocket wheels carry sprocket chains 65 arranged and disposed as shown so that one positively drives another at precisely the same speed -and the first roll54 is driven by a chain 66 that runs from a sprocket wheel 67 on the shaft 45- of the roll 44. A second sprocket 68 near the sprocket 67 and fixed to the same shaft is driven by a chain 69 that runs from a sprocket 70 which is fixed to a gear 71 on a shaft 72, and this gear 71 meshes with gear 73 on the shaft 29 which is driven by the main belt 23 by means of the drum 28. From the calendering rolls 54 the belt 51 passes to idle rollers 74, 75 and 76 mounted in suitable bearings on a bracket 77 secured to the frame 2 of the machine and thence over a cleaning brush 78 in suit-able bearings 79 on the frame 2 and similar in all respects to the cleaning brush 34, above described. This brush 78 is driven by a suitable sprocket chain "80 and sprocket wheels 81, one of these being on the shaft 79 and' the other on the shaft 20. After passing over the cleaning brush 78 which is driven in the same direction as the movement of the belt, the belt 51 passes over a lubricating roller or brush 82, similar in all respects to the brush 36 and mountedon a shaft 83 running in suitable bearings 84 and the brush 82 dips into a suitable trough 85 carrying the lubricating material. The belt 51 is lubricated where it passes over a rbller 86 mounted in suitable bearings 87 supported on the frame 2 of the machine so that the belt 51 is first cleaned and then lubricated at the rear of the machine and then run to the front end of the machiire in its cleaned and lubricated condition, and then passed over the roller 44 and on top of the paper and plaster board, if paper is employed, and 1f paper is not employed, immediately on .top of the plaster board.

The lever 10 which is oscillated as above described, in addition to driving the machine drives the saw mechanism which is so arranged and disposed that on the stroke from front to rear and while the pawl 16 is passing over the ratchet teeth of the ratchet 17 and. so not running, the belts and rollers above described, so that the plaster boardis momentarily stationary, the mechanism: described below causes a saW to out through the board 27 whereby the plaster board is severed into appropriate lengths. The mechanism by which this is accomplished will now be described. A link 88 is pivotally connected to the lever 10 and at its other endis connected to a cross head 89 which slides in suitable guides 90 fixed in an extension of the frame 2 and the cross head 89 is enlarged near its center'and provided with a transverse slot 91 in which runs a pin 92 fixed to the shorter arm of a bell crank lever 93 suitably pivoted at 94v so as to oscillate in a horizontal plane. The longer arm of the bell crank lever 93 is pivotally connected to a link 94' which at its other end is pivotally connected to a cross head 95 that carries an electric motor 96 on which is a circular saw that is adapted to rotate to saw the plaster board, as above described. The electrical connections for the motor are omitted as they are obvious. When the machine is in operation the motor runs continuously. The cross head 95 moves in suitable uides 98 and 99 in each of which is provided 'upper and lower parallel grooves 100 and 101 and suitable switches 102 and 103 which are so arranged and disposed that on the stroke for cutting, which I will call the advance stroke, the cross head 95 travelsin the grooves 100 and on the return the. lever 108 lowers shown in Fig. 12 the switch 102 15 gravity-' controlled and is pivoted at 104 so that on its return movement the cross head 95 simply raises the same and passes under and continues moving until it strikes a lever 105 fulcrumed at 106 and at its otally connected to a link 107 which runs to a corresponding lever 108 at its other end and to which it is pivotally connected, which lever 108 is pivoted at 109 and provided with a head 110 againstiwhich the cross head impinges when moving in the direction of this lever. v

The link 107 carries a pin 111 which enters the slot in the arm 112 which is fixed to and projects from able bearings 114. The shaft 113 also carries a counter-weight arm 115 which is fixed thereto and the free end: of thisarm 115 carries a suitable weight 116 which acts as a counterbalance for the switch 103. .The switch 103 has a depending arm 117 on each side and each arm is connected to an arm- 118 fixed on the shaft 113 by sliding pivotal connection so that when the arm 112 is shifted from right to left as in Fig. 12, the

switch 103 is raised. When the arm 112 is shifted from left' to right, the switch 103 is lowered, This moving of the switch 103 is accomplished through the levers 105 and 108, the lever 105 raises the switch 103 and the same and these levers rock when moved by the cross head 95. In the structure shown in Fig. 16, the

lower end pivmovement of the cross a shaft 113m'0unted in suitsame result is obtained with less mechanism.

There the switch 102 acts the same as before but the switch 103 consists of nothing but. a tongue 119 fixed to a short stud shaft 121 journaled 'in the frames 98 and 99 to which a Weighted lever 120 said tongue 103'is always maintained in this elevated position unless forced'down by the cross head. The cross head 95 is provided with a, bottom 122 which has projecting lugs or pintles 123 that take into the grooves 100 or 101.

suitable bolts 124 which support the top 125 at any desired elevation that the adjustment,

of the machinemay require, and to this top 125 is bolted saw 97. The link 94 isconnected to the cross head 95 by means of a suitable bracket 126 through which passes apin 127'and the bracket 126 is the plaster board and at each side of the saw are the parallel straps 128 between which is also secured so thatpreferably secured to the bottom 122 in any suitable manner" Above The bottom 122 also carries the motor 96 which carries the Y I 3 in the conventional manner.

a pawl 16 turns embodiment of my invention,

the saw passes on its operative movementv and below which and below the plaster board it passes on its inoperative movement. The object of these two parallel prevent the saw from injuring the plaster board while cutting the same.

The operation of my improved machine will be readily understood from the foregoing. When the machine is operated, power is applied through the pulley t by the belt The eccentrio 7 acting through the rod 9 gives the lever 10 an oscillating movement and this lever in turn oscillates the lever 13 and causes the same to oscillate on'the shaft 14. The oscillation of the lever 13 through the the ratchet in a clockwise direction thereby turning the shaft 14 on which the gear 18 is fixedly mounted which gear drives the pinion 19 and shaft 20 and the drum 22 fixed thereon and this drum drives the belt 23 and the drum 28 and through the mechanical connections the upper belt 51 and the calendering rollers 54. The cleaning and lubricating brushes for both the upper and lower belts are also driven as above described and the saw mechanism is also synchronously actuated so as to sever the plaster board into appropriate lengths. The plaster is put on the belt 25 by the device 43 or otherwise, between the rollers 42 and 4a and thence passes under the paper from employed, and is spread out on the belt 25 between the borders 24: and after leaving the roller 44: is spread under belt 51 if such a belt be employed, either with or without the pa er, and thence passes under the hot calen ermg rolls 54, so that the plaster is prop erly dried and set, so that when it reaches the rollers 7 5 and 26 which drawthe belts awayand pass the plaster board on to the sawing mechanism where it is severed into properlengths and then may be removed from the machine in any desired manner. The plaster board is not continuously fed but intermittently with periods of rest during which the saw severs theboard as above described.

In view of. the foregoing, it is obvious that I have shown and described a machine which is automatic in its operation and capable of manufacturing plaster board without any manual operation whatsoever.

While I have shown and described one it is obvious that it is not restricted thereto, but is broad enough to cover all structures'that come within the scope of the annexed claims.

Having thus described my invention, I claim:

1. In a machine of the class described, means for receiving plaster, means for spreading the same, heating means beneath which the same passes, causing the plaster straps is to v said frame, means ating with said belts the roll 17, if such paper he pendent rotary means to set quickly, and means for severing the plaster board into appropriate lengths.

2. In a machine of the class described,

means for receiving plaster, means for distributing the same, means for moving the plaster through mittent motion, heating means under which said moving means passes to cause the plaster to set quickly and means for severing the plaster board into predetermined lengths during its periods of rest.

3. In a machine of the means for receiving plaster, means for distributing the same, revoluble means for pressing and drying the plaster board, and means for severing the board into appropriate lengths. v

4. In a machine of the class described, a pair of belts for receiving plaster, one resting on the other, and one ofv said belts provided with flanges between which the other rests, rollers for distributing said plaster, and rollers for heating and setting the same.

5. In a machine of the class described a frame and drums mounted so as to rotate in for rotating one of-said drums intermittently, belts mounted on said drums, the first belts having flanges on its edges and the second belt resting on the first and between said flanges, and means cooperfor heating and distributing plaster between said flanges and on said belts.

6. In a machine of the class described, a frame and drums mounted to rotate therein, means for moving plaster through the machine, means for rotating one of said drums intermittently, means for ing the plaster moving means, means for heating the plaster during a portion of its movement through the machine and indefor lubricating the plaster moving means.

7. In a machine of the class described, a frame, a pair of parallel drums mounted in said frame, means for driving said drums intermittently, belts carried by said drums, an upper belt above said drums, for mounting the same, means for forming a plaster board between said upper and lower belts, and calendering means for causing the plaster to set quickly and means for supplying a heating medium to the calendering means.

8. In a machine of the character described, a frame, an upper belt mounted insaid frame, idle pulleys carrying said belt, calendering means, means for heating the same to cause the plaster to set quickly, means for cleaning said upper belt and rotary means class described,

the machine with an intercleanand means acting on the under side of said belt to lubriand means for permitting the water of conframe, a pair of parallel drums mounted in said frame, belts mounted on said drum and meansfpr driving one of said drums intermittently, an upper belt and means for mounting the same, means for driving saidupper belt from one of said drums, a series of calendering rolls and means for heating the same, and means for driving the same.

11. In a machine of the class described,

parallel guides with upper and lower tracks,

vertically movable switches'at each end of and a cross-head moving in one direction in one of said tracks and the other said tracks,

direction in the other of said tracks.

12. In a machine of the means for forming plasterboard guides with upper and lower tracks therein, switches at each end of said tracks,a crosshead adapted to move in one direction in one set of tracks and in the other direction in the other set oftracks, and cutting mechanism carried b said cross-head adapted to sever said plast er board during its period of rest.

13. In'a machine of the class described, an oscillating lever and means for driving the same, across-head 89, a link connecting said cross-head and oscillating lever, guides for said cross-head and a bell-crank lever connected tosaid-cross-head and means for supporting the same, a second cross-head and means for mounting the same, cutting mechanism carried by said last mentioned cross-head, and a link connecting said last mentioned cross-head with said bell crank lever.

14. In a machine of the class described,; .means for receiving plaster, means for and rotary heating spreading the same, means for causing the plaster to set quickly.

15. In a machine of plurality of simultaneously movable belts onewithin the other, one of which is longer than the other, and heating means for causing plaster c rried by said belts ,to set quickly.

16. In a machine of the class described, aplurality of simultaneously movable belts one within the other and resting thereon,

one of which is longer than the other, and heating means for causing'plaster carried by said belts to set quickly. I

-17. In a machine of the class described, a plurality one within the other the other and one provided with thickened edges, and heating means for causing plaster carried by said belts to set quickly.

18. In a machine of the class described, a

.belt having athickened edge, and the belt of class described,

plurality of .belts one the classdescribed, a

of simultaneously movable beltsand one resting uponless width mounted above and around and for a cooperative movement simultaneously .less width mounted above and around and for a cooperative movement simultaneously with. the first named belt ofgreater width and a protecting belt for the same, and heating means forcausing .plaster. carried by said belts to set quickly. v J

21.. In a machine of the class described, a plurality of belts one within the other and one of which is shorter than the others, two

of which on their operative runs are in close proximity to each other, and the other one of which on its operative run is "slightly above the uppermost thereof, and heating means for causing plaster carried by said belts to set quickly.

22. In a machineof the class described, a within the other and none of which, on their operative runs, moves in contact with the others, one of said belt-s having thickened edges, and a protecting belt which on its operative run moves over the uppermost of said belts and heating means for causing plaster carried by said belts to set quickly.

28. In a machine of the class described, a I

plurality of belts one within the other and one upon the other for moving plaster, and

said belts to a supplemental beltabove the same with means for causing plaster carried by sai belts to set quickly.

means for cleaning the same, and heating 24.. In a machine of the class described, a

plurality of belts one within the other and one upon the other for moving plaster, and a supplemental belt above the same with ro tary means forlubricating the under side of the same,.and heating means for causing plaster carried by said belts to setquickly.

25. In a machine of 'the'class described, a

pair of receiving belts one within the other and one resting on the other and one provided with thickened edges, and means for heating the plaster distributed on said belts.

26. In a-machine-of the class described,

means for. receiving plaster,means for mov- 1 ing the same with an intermittent motion, heated rotary means for causing the plaster. to set quickly, a reciprocating saw carrier and means for actuating the same during the periods of rest ofsaid means. 27. In a machine ofthe class described,

. means for receiving plaster, means for moving the same with an intermittent motion, means for severing the plaster board during the periods of rest of said means, means for reciprocating the same, a movable carrier therefor, and .means constructed to au-v tomatically switch the carrier at each end of its stroke.

28. In a machine'of the class described, means for'recei'ving plaster, means for moving the same .with an intermittent motion,

means for severing the plaster board durin the periods of rest of said means, a movab e carrier for said severing means, gu1des for said carrier, and means for automatically switching the carrier at each end of its stroke from one set. of guides to the other.

29. In a machine of the class described, means for receiving plaster, means for moving the same with an intermittentmotion, heated rotary means for drying the plaster, means for severing the plaster board during its periods of rest, and means for reciprocat- .mg said severing means and reversing its motion at each end of its stroke.

- 30. In a machine of the class described,

a an endless belt, heating means for causing plaster carried by said belt to set quickly,

and rotary means for lubricating the under side of said belt upon its inoperative run.

, 31. In a machine of the class described, an endless plaster-carrying belt, heating means for causing'plaster carried by said belt to set quickly, and rotary -means for clealiing'the under side of said belt upon its inoperative run. l

; 32. Ina machine of the class described,

an endless plaster-carrying belt, rotary means for cleaning the under sideiof the same, means for lubricating the under side of said belt upon-its inoperative run and heating means for causing plaster carried by said belt to set quickly.

33.; In a machine of the class described. a set of calenderingrolls, means for he-at} ing the same, means for permitting the water of condensation to escape and meansv vice operativelyconnected therewith, a carrier for said device, means for automatically switching the same at each end of its stroke and a motor carried by the carrier of said severing device.

Signed at'the city of New York, county of Richmond, State of New York, this 5th day of July, 1909.

" GEO. R. KING.

Witnesses:

JOHN Gos'rnnm, H. W. PEARSON. 

